I can't get it to work on my webserver. I got libgd installed and the php5 extension. but all I get is a redirection to the top folder...? Using apache2 and php5 using mod_proxy and ssl.
What webservers did you guys test it on?

well, it isnt a real demo attempt, more a proof of concept. the whole point is to do all drawing on the server side and see what framerates were possible.

the flushes are a result of changing various things and finally getting it to work. I'll see if I can get it working in the other browsers as well. One strange bug im having is that you have to press stop and then reload in FF for it to go past the first image.